Journal bearing



Oct. 4, 1932. w. J. ONEILL ETAL JOURNAL B EAR I'NG Filed April 3, 1930 IN V EN TORS j MM} @WJQ I j 9%04/44/ flS. fgwullzy A TTORNEY.

Patented Oct. 4, 1932 .sT TEs [PATENT QFFICE WILLIAM J. ONEILL, ornnnvna; COLORADO, AND WILLIAM E. mvmn, or SALT, LAKE crrmo'mn v Q I JOURNA BEARiNG imam filed April 3, 1930. Serial No.,441,24o..

u Our: invention relates to a new type of journal bearing for the journals of locomotlve engines.

I And the objects of our invention are 'F irst, 'to provide, a journal bearing for the journals of locomotive engines that will pre- ,vent thefriction of the bearing en the journalthatiscaused by the expansive forces to their bearings. c v H v i Third, to provide a journal bearing that is which the bearings and'the journals of locomotives are Subjected whe'nthey are heated.

V is Second, to provide a new type of journal bearingftha t lis especiallyfadapted to support heavy ,loads on axles and shafts .thatrevcei ve and transmit the speed and power of high speed engines andespec1allythat class of engines' that are used insteamsh ips and flying machines where there is a continuous vibratory motionwand constant torsional strains on the journals ofthe engines against provided with brasses ofv any suitable alloy that are safeguarded against accidental displacement from its supportingbox. .25 i

Fourth, to provide a s1mple,'practicaljournal'bearing that is less 'expenslve to manufacture than thosein use and one in which the brassesare fitted loosely enough to be 1 veryi quickly removedwhen .worn out and be replaced by new ones in veryinuch less time than the brasses can be removed from bear- 1 ings of the type in which they are pressed i v 'on line 22.

Ei l t into theirboxes by hydraulic or other pressure;v i I 1 Weattain these, objects by the mechanism illustrated inrthe accompanying drawing in Fig- 1 is a plan view'of one half of the journalbox-and'bearing. I a 2 is a sectional plan'viewof Fig. 4

'Fig.- 3 is a sectional view Ion-line 3-3 of Figg5. i I

end elevation ofour journal bearing as it standsin the locomotive, the

journal f Of-lihB locomotive being shown in dotted lines, and i Y Y Fig. is a sectional vi of the journal box 9. 1 1 5+ cf Fi vceive them. o v I The opposite terminal ends 4 and 5 of our two bearing bushings are made shorter than Similar letters of reference refer to similar parts throughout the several views.

Referring to the drawing, the numeral 1 designates the journal box of our journal bearing. Itmay be made in any standard shape andsize. The box is formed as illustrated with the recesses and projections usually employed in these boxes to secure them in their positions in the locomotive,

Our journal bearing has for its essential feature a bushing that is divided into two separate pieces 2 and 2. These pieces are curved on their inner periphery to fit the journal on which they are to rest and are curved on their outer peripheries to fit snugly .butloosely enough to have a short rotary compensating movement against the bottom of a curved recess 3 formed in the box to rethe recess 3 toleave small spaces 6 and 7 These spaces 6 and 7 vided in themiddle of it and at the apex of its circle and directly in vertical alignment with the vertical axis of the'journa-l on which theyrest. Our invention however, contem- "plates making these two parts of'the bearing in two pieces ofunequal lengths orin three pieces, if we so"desire, of any predetermined lengths.

The two pieces of the bearing bushing-w illustrate form, two half parts of a semicircularsleeveshaped bearing, of a length of approximately equal to the thickness of the box; They areinsertedinto the axial bore .8 of the box from its front side and they fit so that they can move a limited extent rotatively andtherebyadjust themselves tothe journal. They also have freedom to expand and thus avoid thepinching-of the journal 5 wheels on locomotive No. 3605 on the D. & R.

G. Railroadand they have been running I which is a common fault of be'arings'secured with a tight fit in boxes when they are expanded by being heated.

The'two half parts of our bearing are pref .erably provided with enlarged collar members 9 at their outer ends, which 'fit in the count'erbore 11 in the front side of the box; The collars are made slightly thicker than thedepth of the counterbore to project a short distance from the front side 10 of the box. Thereis a'thin projecting lip 12 at the front peripheral edge of the frontside 1Ov of the box, defining a=circumferentialrecess 14 formed between it and the projecting'part of the collars of the divided bearing. This recess is. filled with a metal such as brass or.iflpre ferred, with Babbitt metal 13, which receives h d th s of the axle of the -10. comot'ive. When this metal wears down thin,

201a is removed and t recess again filled with it 1 Should the outside surface ofthe collars of the two parts of the bearing wear away o'r'fromany accidental cause be broken awaysmaller than the bore of the box, the

bearing would naturally move through and project beyond the rear side15 of th'e'box.

Oneof the features of our invention however,

is toprevent anyinward lateral'movement of I [the bearing members in the box and while h are, several ways f preventing this 7 movement, we Prefer to Prevent thishteml movement in thetfollowin'g manner. -Upon ..the rearside 15 of the box we 'secure'by any suitable means but preferably "by electricwelding, a thin'steel ring 16, of a size to p oject partly over, and closely but loosely against. theinner ends of the bearings, thus 'forminga rigidand strong abutment bearinga'gainst the inner endsof the two bearing members,.an'd positively'preventing possible accidentalmovement of them outof the rear end of the box. The two parts of the bushing are held firmly in the recess in the box'solely by the means above described, in-

stead of by the use of bolts,,wedges, rivets or otherretaining devices such as are used in some 'of the journal bearings at present 1n Our bearing bushings are preferably made ofa brass, alloy, 1 but our invention however, contemplates gthe use of any other kind of;

' bearingmembersinthe box 011 Sept. 18th, 1929 we completed and placed our journal bearing on al pair of "steadilyonthe regular runs of this engine untn; a 'few days ago when they were examined and were found in perfect condition f'and their actionha's been perfect in preventing pinching 'of the journals of the wheels I and they havenotgotten jas'hot on this-mountain' road of'many short and sharp curves as the regular fornrof journal boxes that have 'Patentisz their fjournal bearing brasses V or members pressed rigidly into their seats in the boxes.

Our invention is practical in every Way for use'on the fastest and heaviest locomotive'engines and also on the journals of marine and flying machineengines where-there is a continualvibratory movement that tends toheat up the bearings and expand them as they be come hot,.w hich decreases the efiectiye driving po we'r of the engine. *While we haveillustratd and describedthe preferred construction of our invention, we do not wish to be limited to the construction and'arran'gement-shown, as changes may be madein it Without departing from the spirit of. our invention, Having described 'onrinvention whatwe claim as new'and desire to secure by Letters 1. A journal 'box having incombination,

an arcuate bearing-receiving recess, and an arcuate bearing rass in said bearing-receiving recess, said bearing brass being in full contact along its outer surface with said arcuate bearing-receiving rec'ess,'the circumferen-' tial length of the "bearing brassbeing sub,-

stantially less" 'thanthe contactingfsurface "of bined circumferential length of said bearing fbrass' being substantially less than the i circumferential length of; th ,jcoi'respond ing contacting faces of thebearing-Teceivingrecess, said bearing brass slidablyfittedin said 'recess'and abutting against said ring, a collar integral with-one end of'said bearing brass fitted within said counter-bore and projecting laterally a short distancetherefrom, a lip onrthei outer edge said i nalboxam defining with, the projecting portion ofsaid collar a second" recess, and "thrust-receiving metal filling'in said second'rece'ss', I; f; 3; A'journal box having, in combination,

a curved bearingrreceiving recess, a counterbore in the box'at one endoffsaid' recess, a

metal ring-fixed-to the other-iendef' the' box and arranged to extend over said-curved'recess, abearingbrass divided axially-into two equal parts, the combined circumferential length of said bearing parts being'substan- I tially lesslthan the circumferential length of the corresponding contacting: faces I of the curved bearing-receiving recess, said-bearing b rass'slldably fitted in said recess and, abutting against sald' rmg, a collar integral with the outer end of said bearing brass,.fitting in second recess.

, cess, and thrust-receiving metal filling in said In testimony whereof, We affix our signaturesl WILLIAM J. ONEILL.

WILLIAM E. IRVINE. 

